Abstract

Regenerated foamed particles, and a regenerated foamed and molded body made from same. The regenerated foamed particles are made by melt forming regenerated TPU particles. The regenerated TPU particles are formed by means of the melting granulation of a recycled composition containing 100 parts by weight of scraps of a waste ETPU molded body and 0 to 20 parts by weight of a TPU prepolymer. The regenerated TPU particles have a viscosity of 1,000 to 9,000 poises measured at 170°C according to the JISK7311 method.

IPC Classes  ?

• C08L 75/04 - Polyurethanes
• C08J 9/04 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent

Abstract

The present invention provides a system for manufacturing a microwave molded shoe, comprising: at least one mold having a shoe shape space; a shoe last provided in the shoe shape space and cladded by a vamp; a sole base material provided in the shoe shape space and comprising a plurality of foam particles; a loading and unloading unit configured to load the shoe last and the sole base material in the mold or unload a microwave molded shoe; a locking unit configured to lock the mold; a microwave unit configured to microwave the sole base material to form the microwave molded shoe; an unlocking unit configured to unlock the mold; and a conveyor belt configured to move the mold such that the mold is shuttled between the loading and unloading unit, the locking unit, the microwave unit, and the unlocking unit. [FIG. 5]

IPC Classes  ?

• B29D 35/10 - Producing footwear having preformed soles or heels joined on to preformed uppers using a moulding technique, e.g. by feeding or injecting plastics material between the parts to be joined
• B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
• B29C 44/02 - Shaping by internal pressure generated in the material, e.g. swelling or foaming for articles of definite length, i.e. discrete articles
• A43D 111/00 - Shoe machines with conveyors for jacked shoes

Abstract

The present invention relates to a foamable composition used for fabricating a foamed thermoplastic polyurethane and microwave molded body thereof; said foamable composition comprises unfoamed thermoplastic polyurethane particles, a tackifier or bridging agent, and a blowing agent; said unfoamed thermoplastic polyurethane particles have a viscosity of 1,000 poise to 9,000 poise, said viscosity being measured at 170°C by the JISK 7311 test method.

IPC Classes  ?

• C08L 75/04 - Polyurethanes
• C08K 5/14 - Peroxides
• C08K 3/34 - Silicon-containing compounds
• C08K 5/00 - Use of organic ingredients
• C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
• B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
• B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming

Abstract

Disclosed is a microwave-transmitting mould structure, comprising a first template (10), a second template (20) and a mould combining unit (30). The mould combining unit (30) has a first snap fit (31), a second snap fit (32) and an engagement member (33). The first snap fit (31) is arranged on the first template (10); the second snap fit (32) is arranged on the second template (20); and the engagement member (33) is snap-fit engaged between the first snap fit (31) and the second snap fit (32), so that when the first template (10) and the second template (20) are subjected to an outward pressure, corresponding faces thereof which the engagement member (33) can pass through respectively abut against abutting faces of the first snap fit (31) and of the second snap fit (32), and thus, the first template (10) and the second template (20) cannot be separated from each other due to an increased pressure inside the mould.

IPC Classes  ?

• B29D 35/12 - Producing parts thereof, e.g. soles, heels or uppers, by a moulding technique
• A43D 25/20 - Arrangements for activating or for accelerating setting of adhesives, e.g. by using heat
• B29C 45/26 - Moulds

Abstract

A vulcanized rubber article. A preparing method for the vulcanized rubber article comprises the following steps: providing an unvulcanized rubber layer and hot melt adhesive powder, wherein the hot melt adhesive powder comprises thermoplastic polyurethane; dispersing the hot melt adhesive powder on the unvulcanized rubber layer; and hot-pressing the unvulcanized rubber layer having the hot melt adhesive powder dispersed thereon to obtain the vulcanized rubber article. Further provided is an application of using the vulcanized rubber article in combination with an object.

IPC Classes  ?

• C08C 4/00 - Treatment of rubber before vulcanisation, not provided for in groups
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
• B29D 35/12 - Producing parts thereof, e.g. soles, heels or uppers, by a moulding technique